Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '89d8416de54b9c58e72c1e1cb5ead33d39677b1f1a12e3325aac425f5d3cbbeb' 
  AND token = 'vPtTZ6BfGd38QtG/HZg4D0+0irNlpMGp8c41/vdX4OA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}